WARNING: [7302-117-19-00000000] Unable to add group member user FAKE/CH/OLEX to CN=GROUP_L_USERS,OU=Mail,OU=Distribution Groups,OU=Messaging,OU=Olex,DC=res,DC=local
Group member has no internet address and could not be added.
Some group members have a blank source address.
You may need to manually add them cross referencing with the default source address(notes source address) so NME can look for the correct CN value. If you open the wlog file you sent, you can see the members having this issue. Check the person document in Domino in order to find out whether there is a value populated to the Internet Address field that could not be exported. Also, as a test, export the user to TSV and amend the Source Address column re-import the tsv file again then run the groups provisioning again.